Abstract Weed interference reduces garden egg productivity. Most farmers adopt highly labor-intensive and expensive manual weeding. Employing herbicides reduces manual labor requirements but herbicides known for garden egg productivity are few. The main objectives of the experiment are to assess the weed control usefulness of pendimethalin in garden egg production and assess the concentration effect on herbicide efficacy. Treatments involved were pendimethalin application at 1.0 and 2.0 kg a.i./ha, hand-weeded and un-weeded controls. Weed biomass, weed control efficacy (WCE) and garden egg yields were evaluated. Biomass of weed was significantly lower in pots that received pendimethalin at 2.0 kg a.i./ha (7.2) than at 1.0 kg a.i./ha (13.9 g/pot), while hand-weeded and un-weeded had 0.0 and 42.6 g/pot, respectively. Weed Control Efficacy was in the order of 100.0 (hand-weeded control)> 83.2 (pendimethalin 2.0kg a.i./ha) > 67.4 (pendimethalin 1.0kg a.i./ha) > 0.0% (un-weeded). Higher herbicide concentration gave better weed control and garden egg yield than the lower concentration. Garden egg yields were in the order of 138.9 (Hand weeded) > 104.2 (Pendimethalin 2.0kg a.i./ha) > 50.6 (Pendimethalin 1.0kg a.i./ha) > 32.3 g/plant (Un-weeded). Pendimethalin (2.0kg a.i./ha) significantly reduced weed biomass in garden egg pots with 83.2% WCE and 75.0% garden egg yield relative to hand-weeded controls therefore should be among the herbicides considered for weed control in garden egg productivity.